Electricity prices right now
Brief
Design of an overview on bolius.dk showing electricity prices hour by hour for the next two days, including an indication of CO₂ emissions per kWh.
Results
- Approximately 25,000 page views per week in the first half of 2025.
- Approximately 4.8 million page views in total since October 2022, corresponding to about 9% of the total traffic on bolius.dk.
Link
Why we started
When the energy crisis broke out in 2022 and electricity prices rose to unprecedented levels, a financial incentive emerged for Danes to shift their electricity consumption. Videncentret Bolius wanted to capitalize on this relevance as quickly as possible. The goal was to:
- help Danes use electricity at the cheapest times
- promote more sustainable behaviour
- drive continuous traffic to bolius.dk
The task
Design an overview on a dedicated page on bolius.dk that shows electricity prices hour by hour for the next two days and indicates CO₂ emissions per kWh.
My approach
As the sole UX/UI designer, I was responsible for the entire design process, which consisted of the following steps:
1. Research and uncovering user needs
Because the deadline was short, I primarily conducted desk research and drew on internal knowledge. This included, among other things, a competitor analysis and interviews with internal subject-matter experts and colleagues.
2. Key design priorities
Based on the collected data, and in collaboration with developers and the project manager, I identified the functionality and requirements that were necessary and realistic in order to launch quickly.
3. Design, iteration and implementation
Based on the list of functionality and requirements, I designed the product by:
- Developing wireframes, which I validated with the developers to ensure technical feasibility.
- Conducting internal user testing and adjusting the design based on feedback.
- Designing the UI in accordance with the design guidelines.
- Handing over the design to the developers and continuously refining it during implementation.
Results
Since its launch in October 2022, the product has generated:
- Approximately 25,000 page views per week in the first half of 2025
- Approximately 4.8 million page views in total, corresponding to about 9% of the total traffic on bolius.dk
Key considerations
The overview was designed to create a consistent experience across mobile and desktop.
It was a high priority to make the electricity prices easy to understand. Therefore, I chose to use colors, size, and numbers to display the hourly price.
CO₂ is very abstract for the average Dane, and at the same time our subject-matter experts assessed that CO₂ emissions cannot be considered “good.” Therefore, it was not appropriate to use color coding. Instead, I chose to show the average from the previous year so users had an indication of what constitutes high and low.